22117307042 has 4 divisors (see below), whose sum is σ = 33175960566. Its totient is φ = 11058653520.

The previous prime is 22117307041. The next prime is 22117307077. The reversal of 22117307042 is 24070371122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19737721081 + 2379585961 = 140491^2 + 48781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22117306996 and 22117307014.

It is not an unprimeable number, because it can be changed into a prime (22117307041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5529326759 + ... + 5529326762.

Almost surely, 2^22117307042 is an apocalyptic number.

22117307042 is a deficient number, since it is larger than the sum of its proper divisors (11058653524).

22117307042 is a wasteful number, since it uses less digits than its factorization.

22117307042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11058653523.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 22117307042 its reverse (24070371122), we get a palindrome (46187678164).

The spelling of 22117307042 in words is "twenty-two billion, one hundred seventeen million, three hundred seven thousand, forty-two".